at49bv040a供应商_at49bv040a中文资料_at49bv040aPDF下载地址价格行情【维库电子市场网】

序号元器件名功能描述生产厂商资料下载
AT49BV040A 4-megabit (512K x 8) Single 2.7-volt... ATMEL AT49BV040APDF下载
AT49BV040A 4-megabit (512K x 8) Single 2.7-volt... ATMEL [ATMEL Corporation] AT49BV040APDF下载
AT49BV040A-70JI 4-megabit (512K x 8) Single 2.7-volt... ATMEL AT49BV040A-70JIPDF下载
AT49BV040A-70JI 4-megabit (512K x 8) Single 2.7-volt... ATMEL [ATMEL Corporation] AT49BV040A-70JIPDF下载
AT49BV040A-70JJ 暂无描述 ATMEL AT49BV040A-70JJPDF下载
AT49BV040A-70JU IC FLASH 4MBIT 70NS 32PLCC Atmel AT49BV040A-70JUPDF下载
AT49BV040A-70TI 4-megabit (512K x 8) Single 2.7-volt... ATMEL AT49BV040A-70TIPDF下载
AT49BV040A-70TI 4-megabit (512K x 8) Single 2.7-volt... ATMEL [ATMEL Corporation] AT49BV040A-70TIPDF下载
AT49BV040A-70TU IC FLASH 4MBIT 70NS 32TSOP Atmel AT49BV040A-70TUPDF下载
AT49BV040A-70VI 4-megabit (512K x 8) Single 2.7-volt... ATMEL AT49BV040A-70VIPDF下载

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历史最低报价：￥0.0000 历史最高报价：￥0.0000 历史平均报价：￥0.0000

怎么擦除不了AT49BV040A Flash Rom
怎么擦除不了at49bv040a flash rom我按照at49bv040a的data sheet写了一个擦除at49bv040a的程序, 但试过后却发现怎么也实现不了擦除的功能, 我的程序流程如下, 请指教.at49bv040a_eprom_erase:;first cycleset_we_pin_highdelay_10usset_ce_pin_highdelay_10usoutput_aah_to_data_pinsdelay_10usset_address_t0_5555hdelay_10usset_ce_pin_lowdelay_10usset_we_pin_lowdelay_10us;second cycleset_we_pin_highdelay_10usset_ce_pin_highdelay_10usoutput_55h_to_data_pinsdelay_10usset_address_to_aaaahdelay_10usset_ce_pin_lowdelay_10usset_we_pin_lowdelay_10us;third cycleset_we_pin_highdelay_1

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